34 results about "Liquidmetal" patented technology

The invention relates to a flexible dielectric elastomer composite material based on nanometer liquid metal. The flexible dielectric elastomer composite material comprises an elastomer and the liquidmetal and is prepared by the following steps: preparing a mercaptan-coated nanometer liquid metal emulsion through ultrasonic crushing, dissolving the elastomer in a solvent, then mixing with the nanometer liquid metal emulsion and uniformly stirring to obtain a liquid metal/elastomer/solvent suspension; obtaining the flexible dielectric elastomer composite material through hot pressing film formation or room-temperature curing. The flexible dielectric elastomer composite material provided by the invention has the benefits that dielectric constants of the composite material are improved, the dielectric loss is effectively reduced, and meanwhile, the elastic modulus of the composite material is not significantly increased, so that the problems of poor compatibility and flexibility of a dielectric elastomer modified by traditional inorganic rigid packing are solved, and the liquid metal-based dielectric elastomer composite material capable of meeting the requirements of a flexible wearable technology is prepared.

The invention relates to a method for preparing liquid metal nano-particles and a method for preparing lithium ion batteries. The method for preparing the liquid metal nano-particles includes steps ofS1, mixing liquid metal alloy, ethyl alcohol solution and dodecyl mercaptan to obtain mixtures I and ultrasonically degrading the mixtures I; S2, allowing the mixtures I to stand still for 2-4 h, andthen filtering and drying the mixtures I to obtain the liquid metal nano-particles. The methods have the advantages that the electric conductivity of the lithium ion batteries with added liquid metalcan be greatly improved, and the liquid metal is high in energy density, can be used as an electrode material additive to provide extra capacity to the lithium ion batteries, and is a perfect material for lithium batteries with high energy density; the lithium ion batteries are little in damage in high-rate charge and discharge procedures owing to the excellent self-healing ability of the liquidmetal, the lithium ion batteries are excellent in high-rate performance as compared with pure lithium titanate batteries, the cycle lives of the lithium ion batteries can be prolonged, and the stability of the lithium ion batteries can be improved.

The invention provides a method for achieving directional solidification based on 3D printing of a multi-layer hollow shell mold. The multi-layer hollow shell mold structure serving as a casting moldis suitable for casting a casting through directional solidification due to the excellent cooling capability, but the multi-layer hollow shell mold structure is complex, manufacturing is difficult through a conventional method, and the accurate multi-layer hollow shell mold structure can be manufactured on the basis of printing of the 3D printing technology. When the casting is cast, after liquidmetal is poured into a cavity of the multi-layer hollow shell mold structure, the bottom of the multi-layer hollow shell mold structure is immersed in cooling water to be cooled, directional solidification is formed, along with ascending of the cooling water liquid level, the hollow layer is gradually filled with the cooling water from bottom to top, the liquid metal solidification interface is gradually upwards pushed in the vertical direction under the situation that the height of the liquid metal solidification interface is larger than the cooling water liquid level height, the same heat preservation conditions of various positions of the casting and stable directional solidification are achieved, accordingly, the defects of mixed crystals, spots and the like are reduced, and the purposes that the casting quality and performance are optimized, and the casting qualification rate is increased are achieved.

The invention discloses a method for producing a cupronickel alloy round ingot. The general formula of produced cupronickel alloy is CuaNibFecMnd, wherein by mass percent, b is larger than or equal to4% and smaller than or equal to 31.5%, c is larger than or equal to 0% and smaller than or equal to 1.8%, d is larger than or equal to 0% and smaller than or equal to 1.2%, the balance is a, and thesum of impurities in the alloy is not larger than 0.5%. According to the method, solid metal is melted through an intermediate frequency furnace, a refining agent is added for refining, refined liquidmetal with qualified ingredients passes through a transferring runner and a graphite crucible and directly enters a crystallizer, and a round ingot producing process is simplified; and ingot castingquality control influence factors are reduced, and consumption of a graphite part in the cupronickel alloy round ingot production process is reduced. According to the method, a desoxidant is added atdifferent times to deoxidize the liquid metal, air sucked in the process that the liquid metal passes through the runner and is directly transferred is eliminated, the quality of the liquid metal is stabilized, and the quality of a round ingot crystal structure is improved.

The invention provides a power generation air bag device and an insole or a shoe sole applying the same, and particularly a single-electrode contact structure friction nanometer generator using liquidmetal as an electrode; in a power generation process, the liquid metal moves to be in contact with an air bag to realize friction power generation, so that the problem that the mechanical energy collection efficiency and the buffering effect of a friction nanometer generator air bag device for collecting human foot movement mechanical energy in the prior art are mutually restricted is overcome; and the power generation air bag device in the insole serves as a power generation device which can serve as a self-driven motion sensor while supplying power to equipment.

The invention discloses a flexible conductor wire and a molding technology thereof. The flexible conductor wire arranged in the surface of a fabric matrix comprises a flexible base, liquid metal and aflexible wrapping, and the flexible base and/or flexible wrapping are/is made of a flexible conducting material. The surface of the fabric matrix is printed with a basic glue material, and the liquidmetal and a wrapping glue material are sprayed and printed in a laminated alternative way to form the flexible conductor wire. The liquid metal is packaged in a flexible hose formed by the flexible base and the flexible wrapping, the conductivity and flexibility are higher, and the conductor wire is resistant to washing and bending. The flexible base has electric conductivity and thermal conductivity and insulation, can be adapted to improvement of the environmental temperature of the flexible hose, ensures that the liquid metal is in the fusion state, and meets the requirements for high conductivity of the flexible conductor, especially for use in areas at lower environmental temperature. The flexible conductor wire is easy to process and mold, satisfies conductance demands in intelligent dresses, prevents generation of bubbles by spraying and printing of the liquid metal and the wrapping glue material in the laminated alternative way, and ensures the stability of conductance.

The present invention provides a recyclable heart stent, which comprises a stent body and a heating device, the stent body is prepared by curing a liquid metal, the surface of the stent body is coatedwith a drug film, and the heating device is used for heating the stent body. The recyclable heart stent has the advantages of flexible liquid metal solid-liquid phase conversion, fast liquid metal curing speed and stable mechanical property after curing; if the recyclable heart stent needs to be taken out, the position where the stent body is located is heated by local heating, so that the liquidmetal is transformed into a liquid state, and is completely sucked out of blood vessels by a catheter to achieve recovery. The liquid metal is good in biocompatibility, anti-thrombosis, corrosion-resistant and non-damage to vessel walls, and avoids inflammatory reaction caused by stimulating of the blood vessels. In addition, the surface of the stent body is coated with the drug film, the concernthat the stent body acts as a foreign body to stimulate a local tissue can be eliminated, and the normal growth of tissues around contact areas between the stent body and the arteries can be ensured.

A nano knife probe and minimally invasive equipment are provided in the embodiments of the present invention, The nano knife probe comprises: a liquid metal connection valve, an IRE generator connection port and multiple bendable probe transfer tubes, the probe transfer tubes are connected with one end of the liquid metal connection valve, the IRE generator connection port is electrically connected with the other end of the liquid metal connection valve, the free end of each probe transfer tube is provided with a probe head, and the probe transfer tube and the probe head are filled with liquidmetal. According to the nano knife probe and the minimally invasive equipment provided by an embodiments of the present invention, the several sets of the bendable probe transfer tubes are set and filled with liquid metal to form probe units, it can not only effectively solve the shortcomings of the traditional rigid monopole probes when the number of manipulation is increased, but also utilize the characteristics of bendable liquid metal probes, which can be introduced into the part of human internal organs through human respiratory tract and digestive tract for tumor treatment, so as to improve the flexibility of tumor treatment in clinic.

The invention relates to a channel device for controlling magnetic liquid metal by utilizing electromagnetic field coupling. The channel device comprises a power supply, a magnetic field element and aplurality of channels, wherein the channels are crossed at a branch; an electrolyte solution is arranged in each channel and the branch; a first electrode is arranged in one channel, and second electrodes are arranged in the rest of at least two channels; the first electrode is connected with a negative electrode of the power supply; each second electrode is connected with the positive electrodeof the power supply; when at least two positive electrode circuits are accessed, magnetic liquid metal moves to stop at the branch; after the magnetic field element gets close to the liquid metal, andthe magnetic liquid metal is attracted to an inlet of certain channel, the magnetic field element is removed, and under action of the electric fields, the magnetic liquid metal moves forwards along the channel. Magnetic fields are utilized for assisting magnetic liquid metal to move in the electric fields, and magnetic fields are applied to the bottoms of the channels, so that the magnetic liquidmetal smoothly moves in the target channel.

The invention discloses an electrocardiograph-monitoring electrode sheet. The electrocardiograph-monitoring electrode sheet comprises a shell plate, a guide column, a buckle cap, a metal net, liquid metal and a double-side adhesive tape, the middle of the shell plate is concave to form an inner cavity, a guide column hole communicated with the inner cavity is arranged in the guide column, the guide column is arranged in the inner cavity through one end of the guide column hole, one end, arranged outside the inner cavity, of the pillar column includes a ball head used for connecting the bucklecap of the lead wire, the buckle cap wrapping the ball head is arranged on one side of the shell plate, the metal net is arranged on one side of the shell plate to enclose the inner cavity, the liquidmetal is filled in the inner cavity, and the double-side adhesive tape surrounding the metal net is arranged on one side, away from the buckle cap, of the shell plate. The electrocardiograph-monitoring electrode sheet can be reused, and the liquid metal maintains good contact with the skin, so that the accuracy of monitoring data of an electrocardiograph monitor is guaranteed, and the consumptionof electrode materials can be avoided.

The invention relates to the technical field of heat exchange, and provides a high-temperature heat exchanger for liquid metaland heat exchange system. The heat exchanger comprises a shell and two pipe boxes arranged at the two ends of the shell correspondingly. The pipe boxes are connected with the shell through pipe plates. Multiple heat exchange pipes are arranged in the shell. The two ends ofeach heat exchange pipe extend out of the corresponding pipe plates correspondingly. A shell pass inlet and a shell pass outlet are formed in the side wall of the shell. A pipe pass inlet and a pipe pass outlet are formed in one pipe box. The pipe boxes and the heat exchange pipes are made of a refractory metal alloy. The system comprises multiple heat exchangers used for the liquid metal. According to the high-temperature heat exchanger and the heat exchange system, by arranging the pipe boxes, made of the refractory metal alloy, at the two ends of the shell and arranging the heat exchange pipes, made of the refractory metal alloy, in the shell, high temperature resistance, high pressure resistance and corrosion resistance of the heat exchanger can be remarkably improved, and the liquid metal can be used as a heat exchange medium for a long time when the heat exchanger conducts heat exchange; and in this way, the heat exchange effect can be improved, the corrosion effect of the liquidmetal on the heat exchanger can be reduced, and the service life can be prolonged.

The invention provides a heat sink based on a liquid metal multiphase fluid. The heat sink comprises a cooling medium container, a liquid metal container, a pipeline mixer, a heat exchange device, a cooling device and a separation device, the cooling medium container is filled with a cooling medium, the liquid metal container contains a liquid metal, and the cooling medium is mixed with the liquidmetal and then introduced into the heat exchange device to cool and dissipate heat source components. The heat sink mixes the liquid metal with another cooling medium to flow to achieve heat dissipation, and the liquid metal has a lower vapor pressure and a high boiling point, and can maintain a liquid state in a wide operating temperature range when used as a coolant; under the low pumping powerconsumption, the internal circulation of the liquid-liquid two-phase flow can effectively improve the heat transfer coefficient, the liquid metal can always perform single relative flow heat exchange, thereby improving the working critical heat flow density value of a heat dissipation system, the reliability of the heat dissipation system is ensured, and the ability of the system to withstand thermal shock is improved.

The invention provides a method for packaging a product by using liquid metal. The method for packaging the product by using the liquid metal comprises the following steps that S1, the prepared liquidmetal is printed on the surface of the product to be packaged through a pre-prepared pattern template to be printed to obtain a liquid metal packaging layer; and S2, a transparent and flexible lightcovering protective layer is prepared on the surface of the liquid metal packaging layer. According to the method for packaging the product by using the liquid metal, the liquid metal is printed on the surface of the product to be packaged, so that complicated process operation in product packaging is avoided, the printing method is simple, convenient and pollution-free and has excellent anti-corrosion and anti-aging effects. The service life of the product can be prolonged through the light covering protective layer, and the attractiveness of the product is obviously improved. By using the conductive property of the liquid metal, a packaging pattern can be converted into a luminous circuit, so that the attraction of the product is increased.

The invention discloses massage equipment. The massage equipment comprises an insulating cover body of a semi-closed structure and a non-metal conducting layer for sealing the insulating cover body. Apositive electrode with the changing position is arranged on the inner wall of the insulating cover body. The non-metal conducting layer is used for being connected with a negative electrode. Liquidmetal is arranged in a cavity between the insulating cover body and the non-metal conducting layer, wherein the volume of the metal is smaller than the capacity of the cavity. The remaining space in the cavity is filled with electrolyte. By means of the mode that the liquid-phase metal is driven by the electrodes to move, a vibrating part of the massage equipment is formed, and compared with a traditional vibrating motor, the problem of local/overall overheating of the massage equipment is avoided. In addition, use of a motor is avoided, so that the overall weight of the massage equipment is reduced.

The invention provides a conductive connecting piece for realizing electric conduction based on liquid metal. The conductive connecting piece for realizing electric conduction based on liquid metal comprises: a first mounting block; two copper blocks which are fixedly mounted on the outer walls of the two sides of the first mounting block; two connecting holes which are respectively formed in thetwo copper blocks; a first fixing groove which is formed in the top of the first mounting block; a first fixing block which is fixedly mounted on the inner wall of the bottom of the first fixing groove; and a second fixing block which is fixedly mounted on the inner wall of the bottom of the first fixing groove. The conductive connecting piece for realizing electric conduction based on the liquidmetal has the advantages of being convenient to use, disassemble and maintain.

The invention relates to the technical field of radio communication, in particular to an adjustable liquid metal antenna array based on a magnetic control voltage transformation technology. The liquidmetal antenna array is composed of an independent liquid metal antenna or more than one liquid metal antenna array, a flexible pipeline is filled with the liquid metal, and one end of the pipeline isconnected with a liquid metal storage tank; a controllable pipeline stop valve is used for executing the connection and disconnection operation, the other end of the pipeline is connected with a magnetic control device, and the controllable pipeline stop valve is used for executing the connection and disconnection operation in the middle. The beneficial effects are that the influence of the liquid metal storage tank on the antenna is effectively eliminated; a control area and an application area are divided by using an isolation plate, so that the electromagnetic interference is effectively reduced; the controllability of the magnetic control device is high, and the array frequency can be continuously changed in a short time; an inert gas effectively prevents the liquid metal from being oxidized; the system is high in controllability, and can achieve the automatic control of a large-scale antenna array.

The invention discloses a fixing mechanism. The fixing mechanism comprises a lower fixture, a middle fixture and an upper fixture, wherein each of the lower fixture and the upper fixture is provided with a first cable tray, each of the upper end surface and the lower end surface of the middle fixture is provided with a second cable tray matched with the first cable tray, each of the lower fixtureand the upper fixture is provided with an insert hole, each of the upper end surface and the lower end surface of the middle fixture is provided with an insert rod matched with the insert hole, the insert rod and the insert hole are fitted, the wall of the second cable tray is provided with an arc concave, the wall of the second cable tray is provided with a silicon rubber sheet covering the concave, the silicon rubber sheet and the wall of the second cable tray are bonded, a storage cavity is formed between the silicon rubber sheet and the arc concave, the storage cavity is filled with liquidmetal, the middle fixture is provided with an insert hole, the insert hole is communicated with the storage cavity, an electric heating tube is inserted into the insert hole, and the tail of the electric heating tube is inserted into the storage cavity. The fixing mechanism has high applicability.

The invention provides a wearable electronic circuit, a DIY manufacturing method thereof and a DIY kit, and relates to the technical field of electronic circuits. The wearable electronic circuit provided by the invention comprises a liquid metal circuit, a power supply, at least one element and a packaging layer, wherein the liquid metal circuit is located on the skin; the power supply and the atleast one element are connected with the liquid metal circuit, and the power supply, the liquid metal circuit and the at least one element form a closed loop; and the packaging layer covers the liquidmetal circuit, the power supply and the at least one element. According to the technical scheme, the wearable electronic circuit can be simply manufactured, the operability is high, and the personalized requirement of a user for the wearable electronic device can be met.

The invention discloses a method for preparing copper-aluminum-silicon alloy powder by using ultrasonic gas atomization and application of the method, and belongs to the technical field of preparationof anode materials for lithium batteries. The method provides a copper-aluminum-silicon alloy anode nanomaterial for preparing the high-performance lithium batteries by using an ultrasonic gas atomization method and application of the method. According to the technical scheme, the method comprises the following steps that firstly, a tundish system of an atomization device is started, and the inner diameter of a tundish discharging spout is phi 6-14 mm; secondly, the tapping temperature of a copper-aluminum-silicon alloy in a molten state is adjusted to be 1300-1700 DEG C; and thirdly, liquidmetal is poured into a tundish, the flow rate of supersonic airflow is adjusted to be 2-2.5 mach. the pulse frequency of the supersonic airflow is 80-100 KHz, airflow pressure is 10-50 Mpa, and powdermaking through ultrasonic gas atomization is conducted. The method for preparing the copper-aluminum-silicon alloy powder by using ultrasonic gas atomization can be widely applied to the field of preparation of the anode materials for the lithium batteries.